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Azure Blob Storage MCP Server
for AI Agents

Production-ready Azure Blob Storage MCP server with 26 extensible actions — plus built-in authentication, security, and optimized execution.

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Azure Blob Storage MCP Server
Built by StackOne StackOne
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Coverage

26 Agent Actions

Create, read, update, and delete across Azure Blob Storage — and extend your agent's capabilities with custom actions.

MCP Actions → Create Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Azure Blob Storage MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Azure Blob Storage tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Azure Blob Storage call.

Tools Discovery →

What is the Azure Blob Storage MCP Server?

A Azure Blob Storage MCP server lets AI agents read and write Azure Blob Storage data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Azure Blob Storage MCP server ships with 26 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, and optimized agent context. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All Azure Blob Storage MCP Tools and Actions

Every action from Azure Blob Storage's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

Containers

  • Create Container

    Creates a new container under the specified storage account

  • List Containers

    List all containers in the storage account

  • Delete Container

    Deletes the specified container and any blobs it contains

Blob Service Properties

  • Get Blob Service Properties

    Gets properties for a storage account's Blob service endpoint

  • Set Blob Service Properties

    Sets properties for a storage account's Blob service endpoint

Container Properties

  • Get Container Properties

    Returns all user-defined metadata and system properties for a container

Container Metadatas

  • Get Container Metadata

    Returns user-defined metadata for the specified container

  • Set Container Metadata

    Sets user-defined metadata for the specified container

Container ACLs

  • Get Container ACL

    Gets the public access policy and stored access policies for a container

  • Set Container ACL

    Sets the public access policy and stored access policies for a container

Blobs

  • Upload Blob

    Creates a new block blob or replaces an existing one with the provided content

  • Copy Blob

    Copies a source blob to a destination blob

  • List Blobs

    Returns a list of blobs under the specified container

  • Download Blob

    Downloads the content of a blob

  • Delete Blob

    Marks a blob for deletion

Blob Properties

  • Get Blob Properties

    Returns all system properties and user-defined metadata for a blob

  • Set Blob Properties

    Sets system properties on a blob

Blob Tiers

  • Set Blob Tier

    Sets the access tier on a block blob

Blob Snapshots

  • Create Blob Snapshot

    Creates a read-only snapshot of a blob

Undelete Blobs

  • Undelete Blob

    Restores a soft-deleted blob and its associated snapshots

Abort Copy Blobs

  • Abort Copy Blob

    Aborts a pending copy blob operation

Blob Metadatas

  • Get Blob Metadata

    Retrieves all user-defined metadata for a blob

  • Set Blob Metadata

    Sets user-defined metadata for a blob as name-value pairs

Blob Tags

  • Get Blob Tags

    Retrieves user-defined index tags on a blob

  • Set Blob Tags

    Sets user-defined index tags on a blob

Find Blobs By Tags

  • Find Blobs By Tags

    Finds blobs across all containers matching a tag filter expression

Set Up Your Azure Blob Storage MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Azure Blob Storage in under 10 lines of code.

MCP Clients

Agent Frameworks

Claude Desktop
{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

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Azure Blob Storage MCP Server Resources

MCP Code Mode: Keeping Tool Responses Out of Agent Context

Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.

11 min

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

Azure Blob Storage MCP Server FAQ

Azure Blob Storage MCP server vs direct API integration — what's the difference?
A Azure Blob Storage MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Azure Blob Storage. A Azure Blob Storage MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Azure Blob Storage at runtime. StackOne provides both.
How does Azure Blob Storage authentication work for AI agents?
Azure Blob Storage authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Azure Blob Storage account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.
Are Azure Blob Storage MCP tools vulnerable to prompt injection?
Yes — Azure Blob Storage MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.
What is the context bloat of a Azure Blob Storage agent and how do I avoid it?
Context bloat happens when Azure Blob Storage tool schemas and API responses eat your Azure Blob Storage agent's memory, preventing it from reasoning effectively. A single Azure Blob Storage query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.
Can I limit which actions my Azure Blob Storage agent can access?
Yes — you can limit which actions your Azure Blob Storage agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my Azure Blob Storage MCP server?
Yes — you can create custom agent actions for your Azure Blob Storage MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Azure Blob Storage's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Azure Blob Storage MCP server?
Skip a Azure Blob Storage MCP server if your integration is purely software-to-software — direct Azure Blob Storage API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Azure Blob Storage actions at runtime.
What AI frameworks and AI clients does the StackOne Azure Blob Storage MCP server support?
The StackOne Azure Blob Storage MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.

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